2145300333569 has 2 divisors, whose sum is σ = 2145300333570. Its totient is φ = 2145300333568.

The previous prime is 2145300333557. The next prime is 2145300333571. The reversal of 2145300333569 is 9653330035412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1436989575025 + 708310758544 = 1198745^2 + 841612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145300333569 is a prime.

It is a super-3 number, since 3×2145300333569³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2145300333571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2145300233569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072650166784 + 1072650166785.

It is an arithmetic number, because the mean of its divisors is an integer number (1072650166785).

Almost surely, 2^{2145300333569} is an apocalyptic number.

It is an amenable number.

2145300333569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145300333569 is an equidigital number, since it uses as much as digits as its factorization.

2145300333569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 44.

The spelling of 2145300333569 in words is "two trillion, one hundred forty-five billion, three hundred million, three hundred thirty-three thousand, five hundred sixty-nine".